3-Bromo-2-chloro-5-(difluoromethyl)thiophene CAS 2091608-75-0
| CAS No. | 2091608-75-0 |
| Molecular Formula | C5H2BrClF2S |
| Molecular Weight | 247.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Bromo-2-chloro-5-(difluoromethyl)thiophene (C5H2BrClF2S) contains sulfur-containing functionality, fluorine/chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 247.49 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
3-Bromo-2-chloro-5-(difluoromethyl)thiophene (CAS 2091608-75-0) is a high-purity analytical reference standard with the molecular formula C5H2BrClF2S and a molecular weight of 247.49 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H2BrClF2S |
| Molecular Weight | 247.49 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F/Cl/Br-containing |
| Sulfur Atoms | 1 |
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